.widget-box
  .widget-title
    span.icon: i.icon-user
    h5 修改系统设置

  .widget-content
    = simple_form_for @system do |f|
      = input f, :login_remember_days, :hint => "必须为整数；为 0 时，表示禁止用户记住功能"
      = input f, :page_num, :hint => "必须为整数"

      .form-actions
        button.btn.btn-success type="submit" 保存